2013 Lamborghini Aventador Roadster

Lambo's ultimate drop-top will be unveiled at the 2012 Geneva Auto Show.

The 2012 Geneva Auto Show looks set to host the unveiling of a new roadster version of the Lamborghini Aventador, the V-12-powered supercar that sits atop the company's potent lineup. During our test drive of the Lamborghini Aventador LP700-4, we called the car "downright devilish in performance," but with the refined driving manners of an Audi sedan.

Lamborghini hasn't released any official photos of the 2013 Aventador Roadster, and we don't want to wait until the Geneva show in March to see the car. Thus, we offer these computer-generated images, which give us a very close approximation to how the car will look on the stand in Switzerland. With the exception of the detachable roof, most everything should carry over from the hardtop. That means you'll get the same ferocious 691-bhp 6.5-liter V-12 engine, coupled to a 7-speed single-clutch ISR gearbox and all-wheel drive.

In the standard LP700-4, this powertrain propels the mid-engine Aventador 2-seater to 60 mph in less than 3.0 seconds. The factory claimed top speed is 217 mph. The Roadster should be able to match these prodigious performance figures, given the care and attention Lamborghini will undoubtedly pay to keeping weight low. The car's carbon-fiber tub weighs in at only 325 lb. Look for the Roadster to use lightweight materials in both its roof and any additional body reinforcements that might be needed.

The price, like those performance stats, is going to reside in the stratosphere. With the Lamborghini Aventador LP700-4 coupe starting at $387,000, it's likely the new Roadster will hit $400,000.